/*
 * Copyright (c) 2020-2021. the original authors and DEPSEA.ORG
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.depsea.butterfly.web.converter;

import org.apache.commons.lang3.StringUtils;
import org.springframework.core.convert.converter.Converter;

/**
 * String to boolean
 *
 * @author jaune
 * @since 1.0.0
 */
@SuppressWarnings("java:S2447")
public class StringBooleanConverter implements Converter<String, Boolean> {
    private static final String[] TRUE_VALUES = {"true", "t", "1", "on"};
    private static final String[] FALSE_VALUES = {"false", "f", "0", "off"};

    public Boolean convert(String source) {
        if (StringUtils.isBlank(source)) {
            return null;
        }
        for (String trueValue : TRUE_VALUES) {
            if (trueValue.equalsIgnoreCase(source))
                return true;
        }
        for (String falseValue : FALSE_VALUES) {
            if (falseValue.equalsIgnoreCase(source))
                return false;
        }
        return Boolean.FALSE;
    }
}
